Combined valve-reseating tool.



c. B. CLARKSON.

COMBINED VALVE RESEATING TOOL.

APPLICATION FILED JUNE 6.19M.

Patented May 23, 1916 d I m Cu 02mm 3. Clarifisom enliven sear a PASTE? Fl res.

CLAUDE B. cnsmison. or smn'em onr. commences.

ooiviemno i ems-assass ns moon 1,1 assess.

To all whom it may] concern:

Be it known that I, CLAUDE B. CLARKSON. citizen of the United States, and resident of Bridegport, in the county of Faiifield and State of Connecticut, have invented certain It is the object of the invention to'produce a new form of tool of the above class which will be simple and-compact in design and which will be adapted for. reseating both valve seats and valve stems. thus forming two tools in one; further to so arrange and design the parts as to ated as in reseating a valve with an ordinary screw driver and further to adapt it to be used in connection With a special form of operating handle for resenting a valve seat, and finally to provide blades alike in construction and the opposite ends of which form the cutting edges for the respective reseating operations; and finally to arrange these blades so that they may be readily removed andreplaced if occasion requires.

With the above and other objects in view the invention resides and consists in the novel construction and arrangement of parts shown upon the .accompanyingsheet of drawings forming a part of this specith cation and upon which- Figure 1 shows a' side elevation of my novel form of valve and valve stem reseati'ng tool. Fig. 2 is a central vertical longitudinal section of the said tool as shown in Fig. 1 and taken on line 2-2 of Fig. 3. Fig. 3 is a top plan view of the tool as seen in Fig. 1. Fig. 4 is a bottom plan view ofthe same. Fig. 5 is a further central vertical longitudinal section through the saidtool and taken on line 55 of Fig. 3. Fig. 6 represents a valve such as the upper end of the tool is designed to trim up as in the reseating operation and Fig. 7 is an operating handle that is designed to be used in the operation of my improved reseating tool.

As before stated the tool is What I terma combined tool and serves to 'form two tools in one both of which are designed for valve grinding or reseating work, one end of the tool being designed for operating upon the valve seat and the other upon the valve,

i'lspeeificati'on of Letters Patent.

valve and;-

adapt it to be opena series of cutting 2 as obviously formed of steel or *body. I

gtiiig blades are notched or -reeessedas at 22 raisin-ea ma as, isle.

Applitation filed an e, 1914. Serial in]. mass.

and so that when each has been operated upon they will properly fit one uponthe other as isrequired for the successful op eration of amotor of which they form a part. My device is designed foi reseating the ordinary forna of asolene nfotorvalves'ins cluding the annu ar beveled seat and the annular conical valve and thus one portionof the tool is of a somewhat conical forms; tion to perform the operation upon'the valve 'seat. \vl'iilethe other portion or end is conf caved or of a funnel: shape to operate upon the valve. Therefore one end of the device is in form and shape just the reverse of the] other. In the reseating operation ofthe valve seats the tool is designed to be rotated or turned upon and Within the seat by means of an attached handle. while in the operation upon the valve proper the tool is held tionary while the valve and its stein are turned within the tool by the assistanee'of an ordinary screw driver.

Referring in detail to the characters of reference marked upon the drawings 10 represents the main body of the tool and which other suit able metal and is of algeneralcylindrical shape. see Fig. 5, having a central hole 11 therethrough, an annular peripheral; tapered edge portion 12 surrounding its lower end, and a conical recess 13 in {its upper end. In addition to the several referred to I also provide a transverse slot 14. see Figs. 2 and 3, in its upper end whieh serves to be engaged by the pin 15 of the operating handle 16. I further provide in the outer face of the body a series of longitudinal arranged pockets 17 which in practice are milled to a uniform Width and depth to re ceive the cutting blades 19. In practice I have shown four of these blades and pockets, but obviously a greater or lesser number may be ernployedif desired.

The cutting blades are preferably formed slightly longer than the hodyfland are provided with an outer beveled cutting edge 20 which in practice projects beyond the peripheral surface 12 of the body and an inner beveled cutting edge 21 upon the rapper and flilllclrlllifi that of the lower end also projects above andbeyond the beveled end 13 of the The outer edge portions of these 6uttolrece1ve the annulerband or cylinder 2-3 which serves to hold the bladesin position.

features of thefbody 'lhcfupper edge portion of the band seats against the annularshOuIder 24 formed by the annular flange 25 of the body. A set screw 26 may be employed to-hold the band first arranged-inside of the band and their end portions 21 are first inserted in the slots I tool as in the grinding of a valve seat.

of the body. whereupon the several blades and band are all shoved in together until the band is seated against its'shoulder and the ends of the blades extend into the upper pocket of the body in the manner indicated.

I have shown in Fig. 1 the handle 16 arranged in position for the operation of lt llie e reduced lower end of the handle being extended through-the hole 11 of the body and the pin seated inthe notch 14 of the body so as to insure the turning-of the body with the tool; A suitable cross finger piece 27 forms a part of the handleso as to insure the easy operation of the device.

, In'Fig. 5 the valve .28 shq an in Fig. 6 isshown in dotted lines in pop on to be operated upon; The downwardly extended stem of the valve in this instance freelyf 'p'asses through the hole 11 of the body while the 4 annular-beveled edge portion of the valve rests updil the inclined cutting edges 21 of the blades m away to' be operated upon by them when the valve is turned by the assistance of a screw driver, not shown.

' From the foregoing it will be seen that the tool is a combined tool and serves the double purpose of operating upon both the valve and valve seat, and thus includes all the necessary tools and equipment for reseating ordinary motor valves and seatsand can obto sell for less than what two or three separate tools wouldcost and as is now necessary for performing these same operations.

Having thus described my invention what I claim and desire to secure by Letters Patent is 1.-A combined resenting tool for reseating'valves and valve seats, including a body portion having a hole therethrough and an external annular flange forming a shoulder,a series of cutting blades seated'in the body and arranged arallel to each other, the said blades projecting beyond the end of the body to form a cutting edge and having a notch in their outer edge portion, a removableband extending around the body and through the said notches of the blades and seated against the shoulder of the body to hold the blades in position.

2. A combined reseating tool for reseating valvesfand valve seats, including a body portion having a hole therethrough and a notch adjacent to one end thereof to receive an operating handle, a series of radially and longitudinally disposed cutting blades seated therein and having a recess formed in their outer edge portion, the ends of the said blades projecting beyond the opposite end portions of the body and beveled off to form cutting edges, a removable band surrounding the body and blades to secure the latter in position. 1

Signedat Bridgeport, in the county of Fairfield and State of Connecticut, this 5th day-of June, A. D. 1914.

CLAUDE B. CLARKSON. Witnesses:

- C. M. NEWMAN,

SAMUEL O. SHAW. 

